HVAC Unit Replacement

Your trusted partner for professional home services. Quality workmanship, guaranteed satisfaction.

Book Now Call (423) 228-7742

Trusted by 500+ neighbors

HVAC Unit Replacement | Heating and Air Conditioning | Greeneville

When Greeneville’s sticky summers or frosty mountain mornings push your old system to its limits, HEP’s local team makes upgrading effortless. Our licensed, NATE-certified technicians evaluate your home’s unique demands, remove the guesswork from sizing, and install a high-efficiency HVAC unit that can slash energy bills while keeping every room consistently comfortable. From the first free estimate to the final thermostat check-in, we show up on time, respect your space, and back our workmanship with industry-leading warranties.

HEP’s roots in East Tennessee mean we understand the region’s climate swings—and the value of friendly, neighbor-style service. Flexible financing, transparent upfront pricing, and 24/7 emergency support ensure you never feel stuck when comfort matters most. Ready to breathe easier? Call or click today to schedule your HVAC unit replacement and discover why Greeneville homeowners trust HEP to keep the air just right all year long.

What Our Customers Say

"Ronnie Troutt was our 1st technician, he did an Awesom job and was the most efficient and knowledgeable HVAC Technician I have ever seen. Doug Hurst and Garod Wood installed our new HVAC unit and were very professional and knowledgeable and they only took about 4 hours to complete the job. Jacob Newman and his partner, sorry I did not get his name, they came to do the final inspection and also were very professional and knowledgeable with their job. Everyone I worked with at HEP Ink was very nice and helpful, we will definitely use them in the future. Thank you HEP and all your workers."

Thomas P.

"Matt not only goes above and beyond with his work, but he always makes sure that he is doing everything possible to financially help our family to make necessary fixes work to where we can afford them. This was the second time we needed HEP for a problem and we specifically called and requested him to come out to help us. Not only did he make that possible, but he was here the same day, diagnosed the issue, figured out a solution, and had the fix scheduled for the next day. Everyone there is great, but we really recommend Matt!"

A. W.

"Jacob Newman provided excellent diagnostics and service on the gas central heating system arriving after normal service hours at 8:30 pm on a very cold evening. Jacob was extremely professional, knowledgeable and explained the problems with the unit."

Richard S.

"⭐️⭐️⭐️⭐️⭐️ 5-Star Review for HEP Heating & Air I live in the Tennessee Smoky Mountains, and when I needed my HVAC system to work and provide heat, it had completely went out. HEP was there when I needed the most and to rectify the issue as quickly as possible considering the fact that we were looking at 20° weather that week. I am beyond grateful for the incredible team at HEP and the outstanding job they did installing my new HVAC system. From the moment they arrived, Don, Chris, Jimmy, and the rest of their crew went above and beyond — even working out in the rain just to make sure the system was installed inside and I could have heat in my home. That level of dedication is something you don’t see every day. Their professionalism, teamwork, and attention to detail were obvious throughout the entire installation. They kept me informed, explained everything clearly, and treated my home with respect. What really impressed me was the extra step they took at the end: they did a “happy call” with the big boss to confirm that the work met my expectations and to address any questions or concerns I might have. That gesture alone showed how much they truly care about their customers. The comfort in my home now is night and day, and I’m genuinely thankful for their hard work and commitment to quality. If you’re looking for a company that takes pride in what they do and puts their customers first, HEP is absolutely the one to call. Highly recommended! Note: I was not paid for my review and I am in no way affiliated with HEP other than being a very happy customer."

Peggy C.

"Had great conversation with ronnie about the my unit"

Maria F.

"Great experience with HEP. Had to replace my HVAC system downstairs. Art & Chino were diligent, hardworking, & very courteous. Excellent service & outstanding Carrier unit! Great communication with me."

Lane S.

"Todd and Kenny stopped by today to do an HVAC checkup as part of my annual master agreement They were prompt, courteous and professional. I appreciate their advice and take it seriously. I will definitely continue to trust HEP with my homes HVAC, plumbing and electrical services"

Andrew W.

"Crew installed new A/C unit. They are very professional! They explained what they needed to do, and did a lot of work that got our new A/C unit working. Great team work! HEP crew are a 1st class team!"

Stephen

"Patrick M. kept in communication on arrival time . Was kind and courteous. He had good knowledge on our aging hvac system informed us on its current condition and potential problems that may arise with an older unit. We received suggestions on new units as well as pricing. Partrick is an asset to the company based on our experiences in the past with other companies. We look forward to working with your company in the near future. The Fritz’s"

Tamera F.

"Ric was absolutely superb as an experienced electrician and simply as a professional. It is so rare to see exceptional customer service these days and Ric (as well as those who took calls) were extremely professional. Ric went out of his way...after hours at that..to complete a job. After I mentioned I wanted the maintenance plan (recommended by 2 of my neighbors), he went out and documented make and model of our HVAC Units for the future reference of those who may call. Exceptional. A friendly gentleman; I am relieved that I know our family has someone and a company we can depend on for so many things.."

Anita A.

Understanding HVAC Unit Replacement in Greeneville

The rolling hills of Greeneville, Tennessee experience four distinct seasons, each bringing its own temperature swings and humidity challenges. Summer afternoons can soar into the 90s with sticky moisture in the air, while winter nights often dip toward freezing. In this environment, an aging or undersized heating, ventilation, and air-conditioning (HVAC) system struggles to keep indoor spaces comfortable and energy costs predictable. HVAC unit replacement performed by HEP delivers a modern, high-efficiency solution tailored to local climate patterns, building construction, and homeowner comfort goals.

Climatic Considerations Unique to Greeneville

Greeneville sits within the Appalachian Highlands, receiving generous rainfall, occasional snowfall, and a wide annual temperature range. Replacement strategies must account for:

Hot, humid summers that elevate latent cooling loads
Cool, damp winters that demand steady, energy-efficient heating
Transitional spring and fall periods when temperature fluctuations stress older equipment
Pollen-heavy spring air that can burden ineffective filtration systems

An expertly sized and installed HVAC unit mitigates these seasonal extremes, maintaining stable indoor conditions without excessive energy consumption.

Common Signs It’s Time to Replace an HVAC System

Homeowners often tolerate underperforming equipment out of habit, failing to recognize clear indicators of decline. Typical warning signals include:

Rising monthly utility bills despite unchanged thermostat settings
Hot or cold spots in different rooms, pointing to airflow or capacity issues
Equipment older than 12–15 years, exceeding modern efficiency benchmarks
Frequent repairs for refrigerant leaks, electrical failures, or blower malfunctions
Excessive noise or vibration indicating worn compressors or bearings
Persistent humidity indoors, even with prolonged air-conditioning cycles

Replacing rather than continuously repairing outdated equipment generally delivers stronger comfort, savings, and peace of mind.

Benefits of Choosing Professional HVAC Replacement by HEP

HEP’s certified technicians focus on comprehensive, code-compliant replacements that balance efficiency, longevity, and indoor air quality (IAQ). Their holistic approach provides benefits that ripple through daily life and monthly finances.

Energy Efficiency Gains

Modern HVAC units feature advanced compressor technology, high-efficiency motors, and enhanced refrigerant management. When professionally matched to a home’s specific load requirements, they:

Consume less electricity or fuel for the same—or better—comfort level
Integrate with smart thermostats for optimized run times
Offer higher Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF) ratings compared to aging systems

Indoor Air Quality Improvement

HEP incorporates filtration, humidity control, and ventilation upgrades during replacement. These improvements:

Reduce airborne allergens such as pollen prevalent in Greene County
Minimize mold growth by maintaining ideal relative humidity levels
Capture fine particulate matter with high-MERV filters
Enhance fresh-air exchange for balanced indoor oxygen and pollutant dilution

Long-Term Reliability and Fewer Breakdowns

Installing premium components with manufacturer-aligned procedures extends equipment lifespan. HEP’s methodology targets:

Proper refrigerant charge to prevent compressor stress
Accurate airflow balancing to avoid coil icing or overheating
Secure electrical connections that resist voltage drops or shorts
Thorough testing that catches micro-issues before system handoff

The HEP HVAC Replacement Process

A structured, transparent replacement sequence ensures homeowners know exactly what to expect from start to finish.

Initial Inspection and Load Calculation

Technicians begin with a detailed onsite evaluation that includes:

Manual J heat-loss and heat-gain calculations
Ductwork measurements and static pressure testing
Thermographic scanning to locate envelope leaks
Assessing current insulation, window quality, and sun exposure

Accurate data prevents oversizing or undersizing, both of which can lead to poor humidity control and wasted energy.

Selecting Appropriately Sized Equipment

Based on collected data, HEP recommends equipment capacities, features, and brands that align with household goals such as quiet operation, superior IAQ, or maximum energy savings. Considerations include:

SEER, HSPF, and Annual Fuel Utilization Efficiency (AFUE) ratings
Compatibility with existing ductwork or the feasibility of ductless solutions
Future integration with smart-home ecosystems

Removal of the Old System and Environmentally Responsible Disposal

Aging equipment contains refrigerants and metals that require careful handling. HEP:

Recovers and recycles refrigerants in accordance with EPA guidelines
Separates copper, aluminum, and steel components for responsible recycling
Disposes of non-recyclable materials at certified facilities

Precision Installation and Commissioning

Key installation steps safeguard performance and durability:

Mounting the indoor air handler or furnace on vibration-damping pads
Setting outdoor condensers or heat pumps on leveled, reinforced pads
Connecting refrigerant lines with nitrogen-purged brazing to avoid oxidation
Evacuating lines to deep vacuum levels below 500 microns to remove moisture
Charging refrigerant by weight for exact manufacturer specifications

Post-Installation Performance Checks

Before the project concludes, HEP conducts:

Static pressure testing to confirm airflow targets
Temperature split verification between supply and return air streams
Electrical load measurements for motors and compressors
Carbon monoxide testing when gas heat is involved
Client walk-through explaining equipment features, filter replacement, and thermostat programming

Types of HVAC Units HEP Installs in Greeneville

Split Systems

A split system divides the coil/compressor outdoors and the air handler indoors. Advantages include:

Higher SEER potential due to larger outdoor coil surface area
Flexibility in pairing different blower configurations
Wide availability of replacement parts and upgrade options

Heat Pumps

Heat pumps offer both heating and cooling from a single unit, extracting ambient heat energy even at lower outdoor temperatures. Benefits encompass:

Reduced dependence on fossil fuels when paired with electric resistance backup
Smooth, steady heating that minimizes hot-blast temperature swings
Advanced inverter-driven models that modulate capacity for perfect comfort balance

Packaged Units

Packaged rooftop or ground-mounted units combine all components within one cabinet. Ideal for:

Homes with limited indoor mechanical space
Simplified maintenance since all parts are accessible outdoors
Streamlined duct connections directly through the roof or side wall

Ductless Mini-Splits

Ductless systems pair a compact outdoor compressor with sleek indoor air handlers. They shine when:

Room-by-room zoning is desired without intrusive duct retrofits
Historic Greeneville homes lack attic or crawlspace for duct runs
Maximum efficiency is needed for additions, sunrooms, or workshops

Advanced Technologies Offered by HEP

Modern HVAC equipment now rivals smart consumer electronics in sophistication. HEP keeps pace with these advancements, integrating features that heighten comfort, efficiency, and user convenience.

Variable-Speed Compressors

Unlike single-stage compressors that cycle on/off at full capacity, variable-speed compressors:

Adjust speed incrementally to match real-time load demands
Eliminate temperature swings and short cycling
Achieve superior humidity removal during long, low-speed cooling runs

Smart Thermostats and Zoning Solutions

Connected thermostats and zone control dampers enable:

Scheduling temperature setpoints around work and sleep habits
Remote adjustments via smartphone or voice assistant
Independent climate zones that prevent energy waste in unoccupied rooms

High-MERV Filtration and UV Purification

HEP upgrades indoor air quality through:

Media cabinets holding deep-pleated, high-MERV filters that capture fine dust and allergens
Ultraviolet germicidal irradiation (UVGI) lamps installed near evaporator coils to neutralize microbial growth
Optional electronic air cleaners that use electrostatic attraction for sub-micron pollutant removal

Importance of Sizing and Ductwork Evaluation

Manual J Calculation: The Gold Standard

Oversizing is a common pitfall that leads to:

Short cycling, which wastes energy and fails to dehumidify
Premature compressor wear due to frequent starts and stops
Higher upfront equipment costs without proportional benefit

Manual J calculations consider:

Square footage, ceiling height, and insulation levels
Air infiltration rates stemming from windows, doors, and framing gaps
Solar heat gain from roof color and window orientation
Internal loads from occupants, lighting, and appliances

Duct Sealing and Insulation

Leaky or uninsulated ducts can squander up to 30% of conditioned air. During replacement, HEP:

Pressurizes ducts to identify leakage points
Seals joints with mastic rather than duct tape for long-lasting integrity
Adds insulation wraps to ducts located in attics, garages, or crawl spaces
Ensures supply and return ducts are balanced for optimal static pressure

Local Regulations and Permits in Greeneville

Code Compliance

Greeneville adheres to the International Residential Code (IRC) with local amendments. HVAC replacements must satisfy:

Minimum energy efficiency requirements for equipment ratings
Proper flue sizing and termination for combustion appliances
Condensate drainage that prevents water damage and mold growth
Electrical disconnect accessibility for service safety

Energy Standards

Tennessee’s energy code recognizes evolving federal SEER and AFUE mandates. Selecting equipment that meets or exceeds these benchmarks positions homeowners for:

Potential utility rebates or tax credits (when available)
Enhanced resale value reflecting eco-conscious property features
Long-term operational cost reductions

Maintenance Considerations After Replacement

The longevity of a new HVAC unit largely depends on routine upkeep. HEP offers guidance to maintain peak performance between professional service visits.

Seasonal Inspections

Spring: Inspect refrigerant charge, clean outdoor coils, verify condensate drainage
Fall: Check heat exchanger integrity, calibrate thermostat differentials, verify gas pressure (for gas furnaces)
Biannual: Confirm blower motor bearings are lubricated (if applicable) and belts are tensioned

Filter Changes and Homeowner Tasks

Replace high-MERV filters every 60–90 days, or more frequently during heavy pollen seasons
Keep outdoor condensing units clear of vegetation to preserve airflow
Maintain thermostat schedules that align with occupancy, preventing unnecessary system cycling

Environmental and Economic Impact of HVAC Replacement

Upgrading to high-efficiency equipment positively influences both household budgets and regional ecosystems.

Reducing Carbon Footprint

Efficient compressors, ECM blower motors, and smart controls can slash electricity consumption significantly. Lower kilowatt-hour demand:

Decreases greenhouse gas emissions from fossil-fuel-based power generation
Alleviates stress on local power grids during peak summer heat waves

Lower Utility Bills

Savings accumulate through:

Higher SEER and HSPF ratios translating directly to reduced energy use
Fewer emergency repair calls and associated labor expenses
Optimal humidity control decreasing secondary costs like dehumidifier operation

Indicators of Quality Workmanship by HEP

Selecting an HVAC contractor involves more than equipment choice. Workmanship defines whether stated efficiencies materialize in the real world.

NATE-Certified Technicians

The North American Technician Excellence (NATE) certification verifies technician proficiency in:

Refrigerant handling and leak detection
Air distribution design and troubleshooting
Electrical diagnostics and safe repair practices

Comprehensive Warranties

HEP aligns installation practices with manufacturer requirements, preserving labor and parts coverage. Proper documentation and commissioning data ensure warranties remain intact for the life of the agreement.

Safety Protocols

Lock-out/tag-out procedures during electrical work
Combustion safety testing to prevent back-drafting or CO infiltration
Personal protective equipment (PPE) adherence to protect both technicians and property

Throughout each replacement project in Greeneville, HEP’s attention to detail, adherence to modern standards, and commitment to tailored comfort redefine the everyday indoor experience.